🕵️ Cerebras Systems Inc. ($CBRS)
SEC insider & ownership activity, last 12 months · CIK 2021728 · every row links its SEC filing
Over the last 12 months insiders sold $295.6M with no open-market buying against it. Lie Sean sold $168.7M (Jun–Sep). 3 planned sales are pending, the largest $153.2M (Sean Lie). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 6 sellers, $295.6M (288 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Lie Sean | 0 | – | 54 | $168.7M | Sep 4, 2026 |
| Andrew D. Feldman | 0 | – | 67 | $64.3M | Sep 4, 2026 |
| Mallick Dhiraj | 0 | – | 84 | $22.8M | Aug 18, 2026 |
| Vassallo Steven | 0 | – | 8 | $21.4M | Sep 4, 2026 |
| Vishria Eric | 0 | – | 6 | $15.7M | Aug 17, 2026 |
| Patel Yagnesh | 0 | – | 69 | $2.8M | Aug 18, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| FMR LLC | 25.7% | Class A | 13G | Jul 8, 2026 | filing ↗ |
| Abigail P. Johnson | 25.7% | Class A | 13G | Jul 8, 2026 | filing ↗ |
| Foundation Capital Management Co. VIII, L.L.C. | 12.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Foundation Capital VIII, L.P. | 12.0% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Atreides Management, LP | 10.7% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Atreides Management, LLC | 10.7% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Gavin Baker | 10.7% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Tiger Global Management, LLC | 10.0% | 13G | May 22, 2026 | filing ↗ | |
| Charles P. Coleman III | 10.0% | 13G | May 22, 2026 | filing ↗ | |
| Benchmark Capital Management Co. VIII, L.L.C. | 9.8% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Andrew Feldman | 9.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Tiger Global Investments, L.P. | 8.7% | 13G | May 22, 2026 | filing ↗ | |
| Tiger Global Performance, LLC | 8.7% | 13G | May 22, 2026 | filing ↗ | |
| Benchmark Capital Partners VIII, L.P. | 7.7% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Coatue Management LLC | 7.1% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Philippe Laffont | 7.1% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Altimeter Capital Management, LP | 6.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Altimeter Capital Management General Partner, LLC | 6.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Gerstner Bradley Thomas | 6.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Coatue Private Fund II LP | 6.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Coatue Private II GP LLC | 6.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| JANE Street Group, LLC | 5.1% | Class A | 13G | Aug 13, 2026 | filing ↗ |
| JANE Street Capital, LLC | 5.1% | Class A | 13G | Aug 13, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Andrew Feldman | $7.1M | Sep 4, 2026 | filing ↗ |
| Sean Lie | $10.2M | Sep 4, 2026 | filing ↗ |
| Vassallo Family Revocable Trust Dated 7/15/02 | $9.5M | Sep 4, 2026 | filing ↗ |
| Sean Lie | $3.4M | Aug 21, 2026 | filing ↗ |
| Andrew Feldman | $49.9M | Aug 21, 2026 | filing ↗ |
| Sean Lie | $153.2M | Aug 20, 2026 | filing ↗ |
| Andrew D. Feldman | $6.7M | Aug 18, 2026 | filing ↗ |
| Sean Lie | $5.4M | Aug 18, 2026 | filing ↗ |
| Dhiraj Mallick | $9.8M | Aug 18, 2026 | filing ↗ |
| Vishria Eric | $15.7M | Aug 17, 2026 | filing ↗ |
| Vassallo Family Revocable Trust Dated 7/15/02 | $11.6M | Aug 14, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 12, 2026 | filing ↗ |
| Earnings (2.02) | Jun 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 23, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | May 15, 2026 | filing ↗ |
| Other events (8.01) | May 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 15, 2026 | filing ↗ |